Fast MRI reconstruction using StrainNet with dual-domain loss on spatial and frequency spaces
Issued Date
2023-05-01
Resource Type
ISSN
26673053
Scopus ID
2-s2.0-85148328680
Journal Title
Intelligent Systems with Applications
Volume
18
Rights Holder(s)
SCOPUS
Bibliographic Citation
Intelligent Systems with Applications Vol.18 (2023)
Suggested Citation
Kusakunniran W., Karnjanapreechakorn S., Siriapisith T., Saiviroonporn P. Fast MRI reconstruction using StrainNet with dual-domain loss on spatial and frequency spaces. Intelligent Systems with Applications Vol.18 (2023). doi:10.1016/j.iswa.2023.200203 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/81541
Title
Fast MRI reconstruction using StrainNet with dual-domain loss on spatial and frequency spaces
Author's Affiliation
Other Contributor(s)
Abstract
One of the main challenges to obtain a high throughput in the MRI process is a slow signal acquisition. This process could be improved using a parallel imaging technique, where fewer raw data with multiple radio frequency (RF) coils are acquired simultaneously to reconstruct a final MR image. Nowadays, all multi-coil MRI machines have a parallel imaging technique for the image reconstruction. However, the parallel imaging still cannot accelerate sufficiently to reduce the overall acquisition time. In another way, this paper proposes a solution relying on a deep convolution neural network (CNN) to generate high-quality reconstruction MR images with higher acceleration factors. The proposed method, called StrainNet, performs the reconstructions by encoding the under-sampled data (i.e., for the speeding up process) into high-level features. Then the important part of the network, called Strainer, is applied to discard irrelevance information, and decodes remaining features back to reconstruct MR images. The proposed network could be trained end-to-end with a newly presented loss function, Dual-Domain Loss (DDL), combining both spatial and frequency losses. The experimental results are based on the fastMRI dataset and show that StrainNet outperforms the competing methods for both 4- and 8-fold accelerations.